Improvement in fire-proof paints



PATENT OFFICE.

OLIVER S. BEALE, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN FIRE-PROOF PAINTS.

Specification forming part of Letters Patent No. 151,825, dated June 9,1874 application filed May 13, 1874.

To all whom it may concern Be it known that I, OLIVER S. BEALE, ofBoston, in the Commonwealth of Massachusetts, have invented a certaincompound called Beales Improved Fire-Proof Paint, to be used moreespecially for roof and other out side parts of buildings, whether ofWood or other material, of which the following is a Y specification:

be substantially preserved: Mingle twenty gallons of coal-tar, two andone-half gallons boiled linseed-oil, two gallons dead-oil, two quartsjapan, one pound litharge, five pounds whiting, and five pounds groundslate; and to this mixture add two pounds bicarbonate of soda, fourpounds common salt, two pounds chloride of lime, and two pounds sulphateof iron, each dissolved separately in water, using only so much water aswill efl'ectually accomplish the solution. Mingle the mass thoroughly byagitation, stirring, or in any way.

This composition penetrates the wood or other material, so as tocompletely adhere, and forms an enduring paint, which not onlyefl'ectually protects the wood from the decay resulting from theexposure to the weather, but substantially prevents its taking fire fromflying sparks or temporary flame. The tar thus mixed will not run in thesun, and is substantially deodorized.

1 claim as my invention A paint composition consisting of the materialsmingled in the proportions and manner above described.

OLIVER S. BEALE.

WVitnesses:

W. F. WATSON, CHARLES G. SAUNDERS.

